All functions are eventually created via fn*. If you look for the source
code of fn it's a macro that emits a call to fn*. It's done this way so
that things like destructuring can be defined in clojure.core (and in
Clojure) instead of in Compiler.java (and in java).
On Mon, May 26, 2014 at 9:08 AM, Ray Miller <r...@1729.org.uk> wrote:
> I was looking at the source for clojure.java.jdbc, and came across the
> following macro:
>
> (defmacro with-db-transaction
> [binding & body]
> `(db-transaction* ~(second binding)
> (^{:once true} fn* [~(first binding)] ~@body)
> ~@(rest (rest binding))))
>
> I understand all of that apart from fn*, which I can't find any
> documentation for. Can anyone enlighten me?
>
> Also, why is the :once tag needed?
>
> Ray.
>
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